Composition for removing surface-finishes.



, condition thereof strArns PATENT orrroa ausztAvn nossELIIAN AND rn wxNEYMANN, on CHICAGO, I LINoIs, Assrcnons, BY MESNE ASSIGNMENTS, 'roCHADELOID CHEMICAL COMPANY, on NEW YORK, n. Y., A CORPORATION or wns'rVIRGINIA.

COMPOSITION FOR REMOVING SURFACE-FINISHES;

No Drawing.

.moval from a surface of a prevlously applied finish, such for. instanceas varnish, paint, enamel, shellac, gums, and lacquers, therebyrestoring the treated surface to the prior to the application of thefinish. v

The usual method of removing varnish or other finish from surfaces, suchfor instance aswoodwork, preparatory to refinishing them involves'theslow and tedious process of scraping the finish from the surface bymeans of a sharp edge or by burning.

The primary'object of our invention is to I provide means for readilyand thoroughly removing varnish or.other finish from surfaces which willobviate the labor incident to scraping or burning.

A further object of our invention is to provide a composition of matterwhich when applied to a finished surface will dissolve, the finish sothat it may be removed, from the surface coincidently with the removalof the composition.

Our invention, generally described, is a composition of matterconsisting in a liquid which will dissolve varnish or other finish uponaisurface and a substance which will prevent the too rapid drying ofthe'liquid after it has dissolved the finish so that the dissolvedfin-ish' will be removed simultaneously with the removal of the composi'tion.

In preparing our composition of matter for removing varnish and otherfinish from surfaces we preferably use parafiin, benzol and acetonecombined in proportions suitable to accomplish the desired result. Inpractice we have found that a composition consisting in pounds ofparafiin, 135 gallons of benzol, and 137 gallons of acetone producesexcellent results and merely re- 7 Specification of Letters Patent.

Application filed June 24, 1903.

Patented Jan. 9, 1912. Serial m5. 162,885.

quires an application of such compound to the surface from which thefin'ish is to be removed and the subsequentremoval of the compositionfrom thesurface which coincidently removes the finish which has beendissolved, thereby leaving the surface entirely free from the finish andin the same condition in which it was prior to the application theretoof the finish. The benzol and acetone attack the varnish or other finishand dissolve the same, while the paraflin prevents the benzol andacetone from drying before the composition may be removed from thesurface.

] While pa'raflin is the preferable ingredient which is used to preventthe too rapid drying of the composition, other forms of wax or waxymaterial may be used either a mineral wax such as the hydrocarbonsakinto parafiin, vegetable wax, such as carnauba or animal waxymaterial, such as beeswax, or fatty acids. Instead of benzol, alcoholmay be used in the composition or other solvents of a generally benzoliccharacter such as other similar coal tar products or a petroleum productsuch as benzine may be employed.

Our improved composition may be made in liquid form by the followingprocess; the benzolor equivalent is placed in the receptacle or mixingtank to which is added the paraflin or its equivalent either in a meltedcondition or inthe form of small'particles, after which the acetone isadded. Our composition may also be made in the form of a semi-paste inwhich case in addition tov the ingredients contained by the liquid formceresin wax is added, the ingredients which in practice have been found-to produce good results being 40 pounds of paraffin, 40 pounds ofceresin.

wax, 140 gallons of benzol, and 140 gallons of acetone.

In compounding the composition to form the semi-paste the arafiin andceresin Wax may first be melted together and added to the benzol andacetone, or the waxes may be dissolved in the benzol.

By means of a composition of matter composed of the'ingredients or theirequivalents above described we are enabled to produce a varnish removerwhich is adapted to free surfaces not only from varnish but,

from all forms of finish merely by the approportions of the plication ofthe composition to the surface and the subsequent removal ofthecomposition which restores the surface to itsco'ndition prior to theapplication thereto of the finish.

Having now fully described our inven finish from surfaces comprisingparafiin and ceresin Wax, a Wax solvent and acetone. 3. A composition ofmatter for removing finish from surfaces comprising Waxy material,benzol and acetone. v

4. A composition of matter for removing finish from surfaces comprisingparaflin, ceresin wax, benzol and acetone.

5. A composition of matter for removing finish from surfaces comprisingacetone and other solvents for dissolving the finish, and

wax for preventing the too rapid drying of the composition.

6. A composltion' of matter for removing finish from surfaces andapproximately comprising forty-pounds of paraffin, forty pounds ofceresin Wax, one-hundred and forty gallons of benzol and one-hundred andforty gallons of acetone.

equal proportions of benzol and acetone and about three and a half percent. of Waxy material.

8. A composition of matter for removing parts of. acetone and otherneutral volatile solvent material combined With not more than aboutthree and a half per cent. of Waxy material. 1

9. The substantially fluent finish remover consisting largely of organicfinish softening material comprising acetone and incorporatedevaporation retarding material comprising paraffin. p In testimonywhereof, we sign this specificatio'n in the presence of two Witnesses.

GUSTAVE DOSSELMAN. PERCY NEYMANN. 1

Witnesses-z H. S. GAITHER, QC. CUN-ININGHAMM I 7 A composition of matterfor removing finish from surfaces, comprising about finish from surfacescomprising about equal

